Review: Source Code

I really didn't expect too much from Source Code... but wow was I wrong! It might be because I'm a sci-fi junkie, or that it was much more brain-food than advertised, but this properly surprised me with its ingenuity.
Through an advanced piece of technology a man is continuously sent back in time to prevent a train bombing, but only has eight minutes in each attempt to do it.
I really can't say more about the plot because it would spoil too much. The plot initially is confusing and awkward, but like fresh puzzle pieces tossed out of their box and assembled, the film evolves and builds upon itself with frequent revelations about what's really going on.
I'm genuinely surprised how no one told me to see this sooner, did no one go to see it? It might prove confusing to some, and the ending might lose people, but if you have a mind for science fiction you will enjoy this.
The film is short, wonderfully precise with no extra baggage or exposition than it requires, the characters are realised just enough to keep us invested and to learn more through its reiterating narrative. Possibly one of the most original concepts I've seen in a film in a long time! (in fact I had to check it was an original screenplay!) It is like a sci-fi Groundhog Day with Christopher Nolan's sensibilities.
I urge you to go and see this, and do not read up about the plot before you do!